基于Simulink的直流融冰系统零 功率试验分析与仿真  

Analysis and Simulation of Zero Power Test of DC Ice-Melting System Based on Simulink

作　　者：刘浩 李道豫 邢方勃 王蓉东 邱志远 邹复春 马俊杰[2] LIU Hao;LI Daoyu;XING Fangbo;WANG Rongdong;QIU Zhiyuan;ZOU Fuchun;MA Junjie(CSG EHV Power Transmission Company Guiyang Bureau,Guiyang 550081,China;XJ Electric Co.,Ltd.,Xuchang 461000,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司贵阳局,贵州贵阳550081 [2]许继集团有限公司,河南许昌461000

出　　处：《电工技术》2022年第5期178-182,184,共6页Electric Engineering

摘　　要：零功率试验是验证直流融冰系统功能完好性的有效手段。以某500 kV变电站直流融冰系统为例,简述了零功率试验原理,基于MATLAB/Simulink建立了相应的仿真模型,对直流融冰系统零功率试验时的稳态运行工况、直流侧和交流侧谐波、晶闸管的换相过电压进行研究,仿真结果与实际较符合,证明了仿真模型的有效性。DC ice-melting system can effectively eliminate icing on overhead transmission lines,and zero power test is an effective means to verify the functional integrity of DC ice-melting system.Taking the DC ice-melting system of a 500 kV substation as an example,the principle of zero power test is described,and the corresponding simulation model is established based on MATLAB/Simulink;On the basis of the established simulation model,the steady-state operation conditions,DC side and AC side harmonics,and commutation overvoltage of thyristor during zero power test of DC ice-melting system are studied.The simulation results are in good agreement with the actual situation,which proves the effectiveness of the simulation model.

关 键 词：直流融冰 零功率试验 稳态分析 谐波分析 换相过电压 

分 类 号：TM743[电气工程—电力系统及自动化]